Submitted: 30 Dec 2013
Accepted: 30 Dec 2013
ePublished: 30 Dec 2013
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J Iran Dent Assoc. 2014;26(1): 75-81.
  Abstract View: 21

Original

In-Vitro Evaluation of the Effect of Sage on Shear Bond Strength of Composite Resin to Bleached Enamel

Zahra Khamverdi, Maryam Beheshti rouy, Mahin Safari*
*Corresponding Author: Email: Mahinsafari@yahoo.com

Abstract

  Background and Aim : There is a reduction in bond strength of composite resin to bleached enamel. The aim of the present study was to evaluate the effect of sage (Salvia officinalis) on the shear bond strength of composite resin to bleached enamel .

  Materials and Methods : In this in vitro study, 60 labial surfaces of maxillary incisors were randomly divided into 4 groups as follows: G1: bleaching G2: bleaching and application of sodium ascorbate-containing solution G3: bleaching and application of Salvia officinalis-containing solution G4: control (no bleaching). A composite resin ( Z100 3M ESPE, Dental products, St Paul, MN, USA) cylinder was bonded on each specimen after acid etching and application of a fifth generation bonding agent ( Single Bond 3M ESPE, Dental products, St Paul, MN, USA ). After thermocycling, the shear bond strengths of the samples were measured in MPa. Data were analyzed using one-way ANOVA and Tukey’s HSD test (α=0.05) .

  Results : Minimum and maximum mean values of shear bond strengths were observed in G1 (12.31±2.44) and G3 (25. 04 ± 3.52), respectively . No statistically significant differences were found in bond strength between the bleached and non-bleached groups after the antioxidant treatment (P>0.05 ).

  Conclusion: There is a considerable decrease in bond strength of composite resin to enamel immediately after bleaching. Application of sodium ascorbate and Salvia officinalis solution can increase the bond strength of composite resin to bleached enamel .

  

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